// Copyright 2004-2011 Castle Project - http://www.castleproject.org/
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

namespace Castle.MicroKernel.ModelBuilder.Descriptors
{
	using System;

	using Castle.Core;
	using Castle.Core.Configuration;

	public abstract class AbstractPropertyDescriptor : IComponentModelDescriptor
	{
		public abstract void BuildComponentModel(IKernel kernel, ComponentModel model);

		public virtual void ConfigureComponentModel(IKernel kernel, ComponentModel model)
		{
		}

		protected void AddParameter(ComponentModel model, String name, IConfiguration value)
		{
			var parameters = EnsureParametersConfiguration(model);

			var parameter = new MutableConfiguration(name);
			parameter.Children.Add(value);

			parameters.Children.Add(parameter);
		}

		protected void AddParameter(ComponentModel model, String name, String value)
		{
			var parameters = EnsureParametersConfiguration(model);
			parameters.Children.Add(new MutableConfiguration(name, value));
		}

		private IConfiguration EnsureParametersConfiguration(ComponentModel model)
		{
			var parameters = model.Configuration.Children["parameters"];
			if (parameters == null)
			{
				parameters = new MutableConfiguration("parameters");
				model.Configuration.Children.Add(parameters);
			}
			return parameters;
		}
	}
}